CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 22,858	$ 17,484	$ 94,353	$ 72,329
Change in unfunded benefit obligation for pension and other postretirement benefit plans - net of taxes of $0, ($5), ($2) and ($10), respectively		(19)	(9)	(37)
Comprehensive income	$ 22,858	$ 17,465	$ 94,344	$ 72,292